Stellar rotation is a difficult problem of the theory of stellar structure and evolution.

恒星的自转，是恒星结构和演化理论的难点。

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The star rotation is a difficult problem in the theory of the stellar structure and evolution.

恒星的自转，是恒星结构和演化理论的难点。

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The relation between stellar chromospheric activity and rotation of evolution stars have a good relativity.

演化恒星的色球活动与恒星自转周期间存在很好的相关性。

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